n2807 ti im / 41107 ti im no.8320-1/4 lv25300m overview the lv25300m integrates all six blocks (fm fe, fm if, double conversion am, am-nc, and pll diversity) required in car radio tuner on a single ship. features the lv25300m is a tuner system that supports the sany o car audio dsp (sdrs300) that allows the creation of standard tuner modules. various setting ch anges can be performed with the soft ware of the control microcontroller according to the intended application. small tuner modules ca n be developed with a smaller number of parts compared to conventional tuners and at a lower total cost. moreover, the lv25300m comes with an antenna switching dive rsity function that switches two antennas in response to various electric field changes while the vehicle is running, a malfunction prevention circuit that operates through antenna switching frequency detection, and a weak electric field detection, and antenna fi xing circuit that uses s meter voltage, making stable reception possible. functions fm f.e. ? balanced input type double balanced mixer (fm mixer 1) ? dedicated rf tuner dac (8 bits 2) ? pin diode drive agc output (antenna damping) ? mosfet second gate drive agc output ? keyed agc adjustment pin (3d-agc) ? differential if amplifier (first if amplifier) continued on next page. ordering number : en*8320a bi-cmos ic 1-chip tuner ic specifications of any and all sanyo semiconductor co.,l td. products described or contained herein stipulate the performance, characteristics, and functions of the described products in the independent state, and are not guarantees of the performance, characteristics, and functions of the described products as mounted in the customer ' s products or equipment. to verify symptoms and states that cannot be evaluated in an independent device, the customer should always evaluate and test devices mounted in the customer ' sproductsor equipment. any and all sanyo semiconductor co.,ltd. products described or contained herein are, with regard to "standard application", intended for the use as general el ectronics equipment (home appliances, av equipment, communication device, office equipment, industrial equ ipment etc.). the products mentioned herein shall not be intended for use for any "special application" (medica l equipment whose purpose is to sustain life, aerospace instrument, nuclear control device, burning appliances, t ransportation machine, traffic signal system, safety equipment etc.) that shall require extremely high level of re liability and can directly threaten human lives in case of failure or malfunction of the product or may cause har m to human bodies, nor shall they grant any guarantee thereof. if you should intend to use our products for app lications outside the standard applications of our customer who is considering such use and/or outside the scope of our intended standard applications, please consult with us prior to the intended use. if there is n o consultation or inquiry before the intended use, our customer shall be solely responsible for the use. ? ccb is a registered trademark of sanyo electric co., ltd. ? ccb is sanyo semiconductor's original bus format. all bus addresses are managed by sanyo semiconductor for this format.
lv25300m no.8320-2/4 continued from preceding page. ? wide band agc sensitivity setting pin, and narrow band agc sensitivity setting pin ? local oscillator circuit (oscillator 1) ? am/fm second mixing oscillator (oscillator 2) ? fm second mixing (fm mixer 2) ? supports both fm japan band and us band. ? am first oscillator coil for am lw, mw, and sw frequency divider circuit, internal frequency divider with reduced number of varactor diode ? weather band fm if ? if limiter amplifier (ifamp: also runs in am mode.) ? s-meter output (shared pin for am), 6-stage pickup (vsm: for dsp) ? dedicated fm s-meter (for dsp and diversity circuit) ? coilless detector circuit ? digital detection buffer output ? if counter buffer output (also used for am) ? sd (if counter buffer on level) adjustment ? sd output (active high) (also used for am) am ? double balance mixer (first and second) ? elimimated if amplification (am 450khz) am ift ? digital detection if buffer output (also used for fm) ? if agc (controlled by narrow band s-meter output) ? rf agc (wide) ? pin diode drive pin (antenna damping) ? wide band s-meter output (shared pin for fm if) ? narrow band s-meter output (detected by am if second amplifier) ? if counter buffer output function (shared pin for fm if), directly connected to pll counter ? sd (if counter buffer on level) adjustment ? sd output (active high) (also used for fm) ? am noise canceller trigger output pin pll ? charge pump for high-speed locking ? internal fet for active lpf ? low radiation noise due to 3v operation ? 4-wire serial bus control circuit (sanyo?s original ccb bus format) ? reference divider ? programmable divider (pulse swallow type) ? crystal oscillator circuit - fm band selection signal detection and control circuits - am, sw1, and sw2 reception - weather band - am/fm rf agc voltage - fm/am rf dac (9 bits 2) ? adc (6/8bits 2, selectable)
lv25300m no.8320-3/4 bus control circuit automatic adjustment switching control ? fm ant tuning circuit fc control ? am/fm reception switching ? fm rf tuning circuit fc control ? am/fm rf agc sensitivity setting: 4 bits ? am/fm if gain adjustment ? fm keyed agc control: 4 bits ? fm/am w-agc sensitivity adjustment ? am/fm rf tuning dac (9 bits 2) ? fm/am n-agc sensitivity adjustment ? am/fm sd control on/off ? fm s-meter shift ? am/fm if counter output control on/off ? am/fm sd sensitivity setting ? am oscillator 1 divider setting ? null adjustment ? seek/receive mode switching ? afc band width connection to cdsp300 (interface) diversity ? am/fm if output (450khz) ? noise amplifier, noise, and agc circuits ? am/fm s-meter output, ac/dc 2 systems ? noise density coefficient circuit ? am-nc gate trigger output ? antenna selection output ? generating a signal for the antenna switching frequency and positioning antenna ? weak electric field detection and antenna positioning block diagram dac circuit ant-d keyed agc fm 1st mix am 1st mix w agc ant-d mix coil cf 10.7mhz cf 10.7mhz fm rf tuner circuit fm ant tuner circuit limiter amp 2ndmix audio circuit detecter fm 1stamp mute circuit afc am 2ndmix differential amp2 s-meter sd if agc detectet trig am 1stamp differential amp1 low cut amp am-nc nc stop cf 10.7mhz a m trans n agc w agc m agc cf 450khz osc coil tuner circuit 2ndifamp s-meter (dc/ac) sd 450khz output_buffer ecl 1/4, 1/6 1/8, 1/10 swallow counter phase det charge pump 6/8bit ad converter lpf nmos tr in 1 in 2 in 3-1 in 3-2 in 3-3 in 3-4 r-ctr p-ctr if counter power on reset noize amp main fix circuit logic divider xtal 10.25mhz xtal osc rf fm rf amp circuit rf am rf amp circuit am ant circuit bpf am detector bus bus- 3v reg current driver ant selector time constant generator counter dac block pll fe a m block fm if 4.9v reg 2.7v reg noize amp noize agc diversity block fm lo/dx am lo/dx 450khz 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 80 79 78 77 76 75 74 73 72 71 70 69 68 67 66 65 64 63 62 61
lv25300m no.8320-4/4 package dimensions unit : mm (typ) 3266 ps this catalog provides information as of november, 2007. specifications and information herein are subject to change without notice. 0.825 17.2 1.6 14.0 17.2 0.825 0.825 0.825 1.6 0.15 14.0 2.7 0.65 0.3 120 21 40 41 60 61 80 15.6 0.8 3.0max 0.3 0.65 sanyo : qip80m-e sanyo semiconductor co.,ltd. assumes no responsibil ity for equipment failures that result from using products at values that exceed, even momentarily, rated v alues (such as maximum ratings, operating condition ranges, or other parameters) listed in products specifications of any and all sanyo semiconductor co.,ltd. products described or contained herein. sanyo semiconductor co.,ltd. strives to supply high-qua lity high-reliability products, however, any and all semiconductor products fail or malfunction with some probabi lity. it is possible that these probabilistic failures or malfunction could give rise to accident s or events that could endanger human lives, trouble that could give rise to smoke or fire, or accidents that could cause damage to other property. when designing equipment, adopt safety measures so that these kinds of accidents or events cannot occur. such measures include but are not limited to protective circuits and error prevention cir cuits for safe design, redundant design, and structural design. upon using the technical information or products described herein, neither warranty nor license shall be granted with regard to intellectual property rights or any other rights of sanyo semiconductor co.,ltd. or any third party. sanyo semiconductor co.,ltd. shall not be liable for any claim or suits with regard to a third party's intellectual property rights which has resulted from the u se of the technical information and products mentioned above. information (including circuit diagrams and circuit par ameters) herein is for example only; it is not guaranteed for volume production. any and all information described or contained he rein are subject to change without notice due to product/technology improvement, etc. w hen designing equipment, refer to the "delivery specification" for the sanyo semiconductor co.,ltd. product that you intend to use. in the event that any or all sanyo semiconductor co.,ltd. products described or contained herein are controlled under any of applicable local export contro l laws and regulations, such products may require the export license from the authorities concerned in accordance with the above law. no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying and recording, or any information storage or retrieval system, or otherwise, without the prior written consent of sanyo semiconductor co.,ltd.
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